1250% is the change from 24 to 324
Calculation steps:
[( 324 - 24 ) ÷ 24] x 100 = 1250%
Formula
Percentage change = [(324 - 24) / 24] x 100
Subtract the new number by the original number
324 - 24 = 300
300 ÷ 24 = 12.5
12.5 x 100 = 1250%
Example